Carpenter&#39;s gage.



J. SMITH.

GAEPBNTERS GAGE. APPLICATION FILED MAY/1, 1912.

ATTORNEY Patented Oct. 15, 1912.

JAMES SMITH, OF SAN FRANCISCO, CALIFORNIA.

CARPENTERS GAGE.

roarcsr.

Specification of Letters Patent.

Patented Oct. 15,1912.

Application filed. May 4, 1912. Serial No. 695,078.

To all whom it may concern: Beit known that 1, JAMES SMITH, a citlzen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented new and useful Improvements in Carpenters Gages, of which the following is a specification.

This invention relates to improvements in carpenters gages, the object of the invention being to provide such a gage which will be simple in construction, compact in form, easily adjusted for use, and especially which can be so adjusted for a very great variety of operations.

In the accompanying drawing, Figure 1s a side view of the gage; Fig. 2 is a top vlew thereof; Fig. 3 is an end view; Fig. 4 is a transverse section.

Referring to the drawing, 1 indicates the body of my improved gage, which is of the form of an H-shaped channel iron, being formed with two fiat parallel longitudinal sides 2, and two other longitudinal sides 3 having comparatively deep grooves 10.

Said body is formed at one end with two end stops 4: extending outwards from the sides 2 at right angles. Longitudinally adjustable upon said body is a main stop 5, having transverse parallel walls 6 spaced from one another and formed with substantially square apertures 7 through which the gage body passes, and connected at opposite edges by transverse plates 8 formed integral with said walls, through which plates 8 are centrally screwed set screws 9. The point of each screw is adapted to be pressed upon the upper of two adjustable gage plates 11, 12, each pair of gage plates 11, 12, lying in one of the grooves of the channeliron body, the plate 12 lying in the bottom of said groove and the plate 11 lying on the top of the plate 12, and each plate being of width just sufficiently less than said groove to permit the plate to slide freely therein. The outer surface of the plate 11 when resting on the plate 12 is substantially flush with the edges of the sides 2, and each plate 12 is formed at one end with an outward extension 13, the outer surface of which is flush with the outer surface of the plate 11 and also the edges of the sides 2. The length of the inner gage plates 12 is exactly the same as that of the body 1, and of the outer gage plates 11 less than that of said body merely by the length of the extensions 13.

From each extension 13 there projects outwardly and centrally thereof a pin 15, and from the adjacent terminal portion of each plate 11 there similarly projects a pin 14, the walls '8 of the main gage stop 5 being formed with narrow slots are openings 16. to permit said pins to move therethroughin the longitudinal movement of the plates 11, 12 in the grooves.

Since the plates and the main stop can all be slid into any position desired with reference to the main body, and can be clamped in such a position by screwing inwardly the set screws 9 it will be apparent that the gage can be used in a great variety of different ways. For instance, the two plates 11, 1.2, on one side may be set so that the corresponding pins are at such distances from the end stops 4 as to gage the position and width of thehole in a door jamb which is to receive a striking plate, and, at the same time, the plates 11 and 12 on the other side may be set at such position from a wall 8 of the main stop as to gage the position and width of the hole in the door to receive the look. In this use of the invention, the position of the main stop is immaterial, it being only used for the purpose of holding the two pairs of plates 11 and 12 in place. But in certain cases, as, for instance, when unusual obstructions are met with, it may be desirable to reverse the plates 11, 12, in one of the grooves. It will be seen that my improved gage permits this to be done. Sometimes it may be desirable that only one of the pins should project between the main stop and an end stop. In this case the outer plate 11 is moved through the main stop until the pin 14 projecting therefrom passes through the corresponding slot or opening 16, so that then only the other pin 15 projects above the edges of the walls 2 in said mam stop and end stops. It will also be seen that not only can the gage be used as a single gage on two opposite sides, but also as a double gage on two opposite sides, for the distance of the pin 15 from the end stop furnishes a gage, the distance of the pin 14 from the main stop also furnishes another gage, and the distances of said pins from each other may be required to be noted. At the same time a similar or different use may be made of the pins on the other side. Or, again, the gage from one pair of gage plates 11, 12, on the side of the main stop near one end of the body 1, and at the same time those from the other pair of gage plates 11, 12, on the side of the gage stop nearer the other end of the body 1.

It will readily be seen that by providing a main gage stop which is adjustable in distance from the end stop, and also, on each side of the gage, two gage plates which are independently adjustable longitudinally, I am enabled to obtain a very great variety of adjustment. At the same time these results are accomplished without undue complications, and in fact the gage as compared with others on the market is very simple in construction, and very compact and of light weight.

I claim 1. A carpenters gage having a main body in the form of an H-shaped channel iron, a pair of independently movable gage plates one above the other in each groove of the channel iron, pins extending outwardly from ends of the gage plates, a stop fitting closely around the channel-iron and the gage plate therein and longitudinally movable thereon, and screws screwed through opposite sides of said stop and adapted inde pendently to be screwed against the outermost gage plates.

2. A carpenters gage having a main body in the form of an H-shaped channel-iron, a pair of independently movable gage plates one above the other in each groove of the channel iron, pins extending outwardly from ends of the gage plates, a stop fitting closely around the channel iron and the gage plate therein and longitudinally movable thereon, said channel-iron being formed at one end with end stops extending at right angles to the channel iron and in line with each other, and screws screwed through opposite. sides of said stop and adapted to be screwed independently against the outermost gage plates. 1

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JAMES SMITH. WVitnesses:

FRANCIS M. WRIGHT, D. B. RICHARDS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

